Commit | Line | Data |
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c906108c | 1 | /* Top level stuff for GDB, the GNU debugger. |
4389a95a | 2 | |
42a4f53d | 3 | Copyright (C) 1986-2019 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
c906108c SS |
21 | #include "top.h" |
22 | #include "target.h" | |
23 | #include "inferior.h" | |
1adeb98a FN |
24 | #include "symfile.h" |
25 | #include "gdbcore.h" | |
c906108c SS |
26 | #include "getopt.h" |
27 | ||
28 | #include <sys/types.h> | |
53ce3c39 | 29 | #include <sys/stat.h> |
c906108c | 30 | #include <ctype.h> |
9e0b60a8 | 31 | #include "event-loop.h" |
8b93c638 | 32 | #include "ui-out.h" |
6457bd47 | 33 | |
4389a95a | 34 | #include "interps.h" |
f15ab4a7 | 35 | #include "main.h" |
29b0e8a2 | 36 | #include "source.h" |
4cc23ede | 37 | #include "cli/cli-cmds.h" |
7f6130ff | 38 | #include "objfiles.h" |
e2207b9a | 39 | #include "auto-load.h" |
bd712aed | 40 | #include "maint.h" |
29b0e8a2 | 41 | |
b5981e5a | 42 | #include "filenames.h" |
0747795c | 43 | #include "common/filestuff.h" |
992c7d70 | 44 | #include <signal.h> |
94696ad3 | 45 | #include "event-top.h" |
98880d46 | 46 | #include "infrun.h" |
0747795c | 47 | #include "common/signals-state-save-restore.h" |
f60ee22e | 48 | #include <vector> |
b4987c95 | 49 | #include "common/pathstuff.h" |
b5981e5a | 50 | |
4389a95a AC |
51 | /* The selected interpreter. This will be used as a set command |
52 | variable, so it should always be malloc'ed - since | |
371d5dec | 53 | do_setshow_command will free it. */ |
fb40c209 | 54 | char *interpreter_p; |
fb40c209 | 55 | |
371d5dec | 56 | /* Whether dbx commands will be handled. */ |
c906108c SS |
57 | int dbx_commands = 0; |
58 | ||
030292b7 DJ |
59 | /* System root path, used to find libraries etc. */ |
60 | char *gdb_sysroot = 0; | |
61 | ||
b14b1491 TT |
62 | /* GDB datadir, used to store data files. */ |
63 | char *gdb_datadir = 0; | |
64 | ||
e64e0392 DE |
65 | /* Non-zero if GDB_DATADIR was provided on the command line. |
66 | This doesn't track whether data-directory is set later from the | |
67 | command line, but we don't reread system.gdbinit when that happens. */ | |
68 | static int gdb_datadir_provided = 0; | |
69 | ||
0c4a4063 DE |
70 | /* If gdb was configured with --with-python=/path, |
71 | the possibly relocated path to python's lib directory. */ | |
72 | char *python_libdir = 0; | |
73 | ||
371d5dec | 74 | /* Target IO streams. */ |
449092f6 | 75 | struct ui_file *gdb_stdtargin; |
22e8e3c7 | 76 | struct ui_file *gdb_stdtarg; |
449092f6 | 77 | struct ui_file *gdb_stdtargerr; |
c906108c | 78 | |
7c953934 TT |
79 | /* True if --batch or --batch-silent was seen. */ |
80 | int batch_flag = 0; | |
81 | ||
1a088d06 AS |
82 | /* Support for the --batch-silent option. */ |
83 | int batch_silent = 0; | |
84 | ||
4b0ad762 AS |
85 | /* Support for --return-child-result option. |
86 | Set the default to -1 to return error in the case | |
87 | that the program does not run or does not complete. */ | |
88 | int return_child_result = 0; | |
89 | int return_child_result_value = -1; | |
90 | ||
c906108c | 91 | |
16e7150e JG |
92 | /* GDB as it has been invoked from the command line (i.e. argv[0]). */ |
93 | static char *gdb_program_name; | |
94 | ||
c88a1531 AB |
95 | /* Return read only pointer to GDB_PROGRAM_NAME. */ |
96 | const char * | |
97 | get_gdb_program_name (void) | |
98 | { | |
99 | return gdb_program_name; | |
100 | } | |
101 | ||
d9fcf2fb | 102 | static void print_gdb_help (struct ui_file *); |
c906108c | 103 | |
8d551b02 DE |
104 | /* Set the data-directory parameter to NEW_DATADIR. |
105 | If NEW_DATADIR is not a directory then a warning is printed. | |
106 | We don't signal an error for backward compatibility. */ | |
107 | ||
108 | void | |
109 | set_gdb_data_directory (const char *new_datadir) | |
110 | { | |
111 | struct stat st; | |
112 | ||
113 | if (stat (new_datadir, &st) < 0) | |
114 | { | |
115 | int save_errno = errno; | |
116 | ||
117 | fprintf_unfiltered (gdb_stderr, "Warning: "); | |
118 | print_sys_errmsg (new_datadir, save_errno); | |
119 | } | |
120 | else if (!S_ISDIR (st.st_mode)) | |
121 | warning (_("%s is not a directory."), new_datadir); | |
122 | ||
123 | xfree (gdb_datadir); | |
14278e1f | 124 | gdb_datadir = gdb_realpath (new_datadir).release (); |
8d551b02 DE |
125 | |
126 | /* gdb_realpath won't return an absolute path if the path doesn't exist, | |
127 | but we still want to record an absolute path here. If the user entered | |
128 | "../foo" and "../foo" doesn't exist then we'll record $(pwd)/../foo which | |
129 | isn't canonical, but that's ok. */ | |
130 | if (!IS_ABSOLUTE_PATH (gdb_datadir)) | |
131 | { | |
e3e41d58 | 132 | gdb::unique_xmalloc_ptr<char> abs_datadir = gdb_abspath (gdb_datadir); |
8d551b02 DE |
133 | |
134 | xfree (gdb_datadir); | |
e3e41d58 | 135 | gdb_datadir = abs_datadir.release (); |
8d551b02 DE |
136 | } |
137 | } | |
138 | ||
b14b1491 TT |
139 | /* Relocate a file or directory. PROGNAME is the name by which gdb |
140 | was invoked (i.e., argv[0]). INITIAL is the default value for the | |
141 | file or directory. FLAG is true if the value is relocatable, false | |
142 | otherwise. Returns a newly allocated string; this may return NULL | |
143 | under the same conditions as make_relative_prefix. */ | |
478aac75 | 144 | |
b14b1491 TT |
145 | static char * |
146 | relocate_path (const char *progname, const char *initial, int flag) | |
147 | { | |
148 | if (flag) | |
149 | return make_relative_prefix (progname, BINDIR, initial); | |
150 | return xstrdup (initial); | |
151 | } | |
152 | ||
153 | /* Like relocate_path, but specifically checks for a directory. | |
154 | INITIAL is relocated according to the rules of relocate_path. If | |
155 | the result is a directory, it is used; otherwise, INITIAL is used. | |
156 | The chosen directory is then canonicalized using lrealpath. This | |
157 | function always returns a newly-allocated string. */ | |
478aac75 DE |
158 | |
159 | char * | |
160 | relocate_gdb_directory (const char *initial, int flag) | |
b14b1491 TT |
161 | { |
162 | char *dir; | |
163 | ||
478aac75 | 164 | dir = relocate_path (gdb_program_name, initial, flag); |
b14b1491 TT |
165 | if (dir) |
166 | { | |
167 | struct stat s; | |
168 | ||
78a8b30e | 169 | if (*dir == '\0' || stat (dir, &s) != 0 || !S_ISDIR (s.st_mode)) |
b14b1491 TT |
170 | { |
171 | xfree (dir); | |
172 | dir = NULL; | |
173 | } | |
174 | } | |
175 | if (!dir) | |
176 | dir = xstrdup (initial); | |
177 | ||
178 | /* Canonicalize the directory. */ | |
179 | if (*dir) | |
180 | { | |
181 | char *canon_sysroot = lrealpath (dir); | |
b8d56208 | 182 | |
b14b1491 TT |
183 | if (canon_sysroot) |
184 | { | |
185 | xfree (dir); | |
186 | dir = canon_sysroot; | |
187 | } | |
188 | } | |
189 | ||
190 | return dir; | |
191 | } | |
192 | ||
371d5dec MS |
193 | /* Compute the locations of init files that GDB should source and |
194 | return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If | |
195 | there is no system gdbinit (resp. home gdbinit and local gdbinit) | |
196 | to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and | |
197 | LOCAL_GDBINIT) is set to NULL. */ | |
16e7150e | 198 | static void |
50dd9793 PA |
199 | get_init_files (const char **system_gdbinit, |
200 | const char **home_gdbinit, | |
201 | const char **local_gdbinit) | |
16e7150e | 202 | { |
50dd9793 | 203 | static const char *sysgdbinit = NULL; |
16e7150e | 204 | static char *homeinit = NULL; |
50dd9793 | 205 | static const char *localinit = NULL; |
16e7150e JG |
206 | static int initialized = 0; |
207 | ||
208 | if (!initialized) | |
209 | { | |
210 | struct stat homebuf, cwdbuf, s; | |
b5a9bfbe | 211 | const char *homedir; |
16e7150e | 212 | |
b14b1491 | 213 | if (SYSTEM_GDBINIT[0]) |
16e7150e | 214 | { |
e64e0392 DE |
215 | int datadir_len = strlen (GDB_DATADIR); |
216 | int sys_gdbinit_len = strlen (SYSTEM_GDBINIT); | |
217 | char *relocated_sysgdbinit; | |
218 | ||
219 | /* If SYSTEM_GDBINIT lives in data-directory, and data-directory | |
220 | has been provided, search for SYSTEM_GDBINIT there. */ | |
221 | if (gdb_datadir_provided | |
222 | && datadir_len < sys_gdbinit_len | |
b5981e5a EZ |
223 | && filename_ncmp (SYSTEM_GDBINIT, GDB_DATADIR, datadir_len) == 0 |
224 | && IS_DIR_SEPARATOR (SYSTEM_GDBINIT[datadir_len])) | |
e64e0392 DE |
225 | { |
226 | /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR | |
227 | to gdb_datadir. */ | |
cc75e0fd | 228 | char *tmp_sys_gdbinit = xstrdup (&SYSTEM_GDBINIT[datadir_len]); |
e64e0392 DE |
229 | char *p; |
230 | ||
b5981e5a | 231 | for (p = tmp_sys_gdbinit; IS_DIR_SEPARATOR (*p); ++p) |
e64e0392 DE |
232 | continue; |
233 | relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p, | |
b36cec19 | 234 | (char *) NULL); |
e64e0392 DE |
235 | xfree (tmp_sys_gdbinit); |
236 | } | |
237 | else | |
238 | { | |
239 | relocated_sysgdbinit = relocate_path (gdb_program_name, | |
240 | SYSTEM_GDBINIT, | |
241 | SYSTEM_GDBINIT_RELOCATABLE); | |
242 | } | |
b14b1491 | 243 | if (relocated_sysgdbinit && stat (relocated_sysgdbinit, &s) == 0) |
16e7150e JG |
244 | sysgdbinit = relocated_sysgdbinit; |
245 | else | |
246 | xfree (relocated_sysgdbinit); | |
247 | } | |
16e7150e JG |
248 | |
249 | homedir = getenv ("HOME"); | |
250 | ||
251 | /* If the .gdbinit file in the current directory is the same as | |
252 | the $HOME/.gdbinit file, it should not be sourced. homebuf | |
025bb325 | 253 | and cwdbuf are used in that purpose. Make sure that the stats |
16e7150e JG |
254 | are zero in case one of them fails (this guarantees that they |
255 | won't match if either exists). */ | |
256 | ||
257 | memset (&homebuf, 0, sizeof (struct stat)); | |
258 | memset (&cwdbuf, 0, sizeof (struct stat)); | |
259 | ||
260 | if (homedir) | |
261 | { | |
262 | homeinit = xstrprintf ("%s/%s", homedir, gdbinit); | |
263 | if (stat (homeinit, &homebuf) != 0) | |
264 | { | |
265 | xfree (homeinit); | |
266 | homeinit = NULL; | |
267 | } | |
268 | } | |
269 | ||
270 | if (stat (gdbinit, &cwdbuf) == 0) | |
271 | { | |
272 | if (!homeinit | |
273 | || memcmp ((char *) &homebuf, (char *) &cwdbuf, | |
274 | sizeof (struct stat))) | |
275 | localinit = gdbinit; | |
276 | } | |
277 | ||
278 | initialized = 1; | |
279 | } | |
280 | ||
281 | *system_gdbinit = sysgdbinit; | |
282 | *home_gdbinit = homeinit; | |
283 | *local_gdbinit = localinit; | |
284 | } | |
285 | ||
992c7d70 GB |
286 | /* Try to set up an alternate signal stack for SIGSEGV handlers. |
287 | This allows us to handle SIGSEGV signals generated when the | |
288 | normal process stack is exhausted. If this stack is not set | |
289 | up (sigaltstack is unavailable or fails) and a SIGSEGV is | |
290 | generated when the normal stack is exhausted then the program | |
291 | will behave as though no SIGSEGV handler was installed. */ | |
292 | ||
293 | static void | |
294 | setup_alternate_signal_stack (void) | |
295 | { | |
296 | #ifdef HAVE_SIGALTSTACK | |
297 | stack_t ss; | |
298 | ||
f39c07ac JB |
299 | /* FreeBSD versions older than 11.0 use char * for ss_sp instead of |
300 | void *. This cast works with both types. */ | |
301 | ss.ss_sp = (char *) xmalloc (SIGSTKSZ); | |
992c7d70 GB |
302 | ss.ss_size = SIGSTKSZ; |
303 | ss.ss_flags = 0; | |
304 | ||
305 | sigaltstack(&ss, NULL); | |
306 | #endif | |
307 | } | |
308 | ||
bf469271 | 309 | /* Call command_loop. */ |
11cf8741 | 310 | |
fcc8fb2f PA |
311 | /* Prevent inlining this function for the benefit of GDB's selftests |
312 | in the testsuite. Those tests want to run GDB under GDB and stop | |
313 | here. */ | |
314 | static void captured_command_loop () __attribute__((noinline)); | |
315 | ||
bf469271 PA |
316 | static void |
317 | captured_command_loop () | |
c906108c | 318 | { |
f38d3ad1 PA |
319 | struct ui *ui = current_ui; |
320 | ||
bb5291d0 | 321 | /* Top-level execution commands can be run in the background from |
b4a14fd0 | 322 | here on. */ |
cb814510 | 323 | current_ui->async = 1; |
b4a14fd0 | 324 | |
3b12939d PA |
325 | /* Give the interpreter a chance to print a prompt, if necessary */ |
326 | if (ui->prompt_state != PROMPT_BLOCKED) | |
327 | interp_pre_command_loop (top_level_interpreter ()); | |
b2d86570 PA |
328 | |
329 | /* Now it's time to start the event loop. */ | |
330 | start_event_loop (); | |
331 | ||
11cf8741 JM |
332 | /* FIXME: cagney/1999-11-05: A correct command_loop() implementaton |
333 | would clean things up (restoring the cleanup chain) to the state | |
334 | they were just prior to the call. Technically, this means that | |
e26cc349 | 335 | the do_cleanups() below is redundant. Unfortunately, many FUNCs |
11cf8741 JM |
336 | are not that well behaved. do_cleanups should either be replaced |
337 | with a do_cleanups call (to cover the problem) or an assertion | |
371d5dec | 338 | check to detect bad FUNCs code. */ |
6328eb38 | 339 | do_cleanups (all_cleanups ()); |
11cf8741 | 340 | /* If the command_loop returned, normally (rather than threw an |
bf469271 PA |
341 | error) we try to quit. If the quit is aborted, our caller |
342 | catches the signal and restarts the command loop. */ | |
268a799a | 343 | quit_command (NULL, ui->instream == ui->stdin_stream); |
11cf8741 JM |
344 | } |
345 | ||
013af3fc | 346 | /* Handle command errors thrown from within catch_command_errors. */ |
94696ad3 PA |
347 | |
348 | static int | |
284e6217 | 349 | handle_command_errors (struct gdb_exception e) |
94696ad3 PA |
350 | { |
351 | if (e.reason < 0) | |
352 | { | |
353 | exception_print (gdb_stderr, e); | |
354 | ||
355 | /* If any exception escaped to here, we better enable stdin. | |
356 | Otherwise, any command that calls async_disable_stdin, and | |
357 | then throws, will leave stdin inoperable. */ | |
358 | async_enable_stdin (); | |
359 | return 0; | |
360 | } | |
361 | return 1; | |
362 | } | |
363 | ||
013af3fc TT |
364 | /* Type of the command callback passed to the const |
365 | catch_command_errors. */ | |
9d1e69a2 PA |
366 | |
367 | typedef void (catch_command_errors_const_ftype) (const char *, int); | |
368 | ||
95a6b0a1 | 369 | /* Wrap calls to commands run before the event loop is started. */ |
9d1e69a2 PA |
370 | |
371 | static int | |
013af3fc TT |
372 | catch_command_errors (catch_command_errors_const_ftype command, |
373 | const char *arg, int from_tty) | |
9d1e69a2 | 374 | { |
492d29ea | 375 | TRY |
9d1e69a2 | 376 | { |
3b12939d | 377 | int was_sync = current_ui->prompt_state == PROMPT_BLOCKED; |
98880d46 | 378 | |
9d1e69a2 | 379 | command (arg, from_tty); |
98880d46 PA |
380 | |
381 | maybe_wait_sync_command_done (was_sync); | |
9d1e69a2 | 382 | } |
492d29ea PA |
383 | CATCH (e, RETURN_MASK_ALL) |
384 | { | |
385 | return handle_command_errors (e); | |
386 | } | |
387 | END_CATCH | |
388 | ||
389 | return 1; | |
9d1e69a2 PA |
390 | } |
391 | ||
ecf45d2c SL |
392 | /* Adapter for symbol_file_add_main that translates 'from_tty' to a |
393 | symfile_add_flags. */ | |
394 | ||
395 | static void | |
396 | symbol_file_add_main_adapter (const char *arg, int from_tty) | |
397 | { | |
398 | symfile_add_flags add_flags = 0; | |
399 | ||
400 | if (from_tty) | |
401 | add_flags |= SYMFILE_VERBOSE; | |
402 | ||
403 | symbol_file_add_main (arg, add_flags); | |
404 | } | |
405 | ||
97cbe998 SDJ |
406 | /* Perform validation of the '--readnow' and '--readnever' flags. */ |
407 | ||
408 | static void | |
409 | validate_readnow_readnever () | |
410 | { | |
411 | if (readnever_symbol_files && readnow_symbol_files) | |
412 | { | |
413 | error (_("%s: '--readnow' and '--readnever' cannot be " | |
414 | "specified simultaneously"), | |
415 | gdb_program_name); | |
416 | } | |
417 | } | |
418 | ||
52059ffd TT |
419 | /* Type of this option. */ |
420 | enum cmdarg_kind | |
421 | { | |
422 | /* Option type -x. */ | |
423 | CMDARG_FILE, | |
26743505 | 424 | |
52059ffd TT |
425 | /* Option type -ex. */ |
426 | CMDARG_COMMAND, | |
8320cc4f | 427 | |
52059ffd TT |
428 | /* Option type -ix. */ |
429 | CMDARG_INIT_FILE, | |
8320cc4f | 430 | |
52059ffd TT |
431 | /* Option type -iex. */ |
432 | CMDARG_INIT_COMMAND | |
433 | }; | |
434 | ||
435 | /* Arguments of --command option and its counterpart. */ | |
7a63494a PA |
436 | struct cmdarg |
437 | { | |
438 | cmdarg (cmdarg_kind type_, char *string_) | |
439 | : type (type_), string (string_) | |
440 | {} | |
441 | ||
52059ffd TT |
442 | /* Type of this option. */ |
443 | enum cmdarg_kind type; | |
26743505 JK |
444 | |
445 | /* Value of this option - filename or the GDB command itself. String memory | |
446 | is not owned by this structure despite it is 'const'. */ | |
447 | char *string; | |
f60ee22e | 448 | }; |
26743505 | 449 | |
1e3b796d TT |
450 | static void |
451 | captured_main_1 (struct captured_main_args *context) | |
11cf8741 | 452 | { |
11cf8741 JM |
453 | int argc = context->argc; |
454 | char **argv = context->argv; | |
1e3b796d | 455 | |
c906108c | 456 | static int quiet = 0; |
552c04a7 | 457 | static int set_args = 0; |
07540c15 | 458 | static int inhibit_home_gdbinit = 0; |
c906108c SS |
459 | |
460 | /* Pointers to various arguments from command line. */ | |
461 | char *symarg = NULL; | |
462 | char *execarg = NULL; | |
a4d9b460 | 463 | char *pidarg = NULL; |
c906108c | 464 | char *corearg = NULL; |
a4d9b460 | 465 | char *pid_or_core_arg = NULL; |
c906108c SS |
466 | char *cdarg = NULL; |
467 | char *ttyarg = NULL; | |
468 | ||
371d5dec MS |
469 | /* These are static so that we can take their address in an |
470 | initializer. */ | |
c906108c SS |
471 | static int print_help; |
472 | static int print_version; | |
6eaaf48b | 473 | static int print_configuration; |
c906108c SS |
474 | |
475 | /* Pointers to all arguments of --command option. */ | |
f60ee22e | 476 | std::vector<struct cmdarg> cmdarg_vec; |
c906108c | 477 | |
f60ee22e TT |
478 | /* All arguments of --directory option. */ |
479 | std::vector<char *> dirarg; | |
c5aa993b | 480 | |
16e7150e | 481 | /* gdb init files. */ |
50dd9793 PA |
482 | const char *system_gdbinit; |
483 | const char *home_gdbinit; | |
484 | const char *local_gdbinit; | |
c906108c | 485 | |
52f0bd74 | 486 | int i; |
88a1906b | 487 | int save_auto_load; |
b0f492b9 | 488 | int ret = 1; |
c906108c | 489 | |
6242c6a6 | 490 | #ifdef HAVE_USEFUL_SBRK |
1e3b796d | 491 | /* Set this before constructing scoped_command_stats. */ |
e565b837 DE |
492 | lim_at_start = (char *) sbrk (0); |
493 | #endif | |
494 | ||
1e3b796d | 495 | scoped_command_stats stat_reporter (false); |
c906108c | 496 | |
0fbb3da7 TT |
497 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
498 | setlocale (LC_MESSAGES, ""); | |
499 | #endif | |
500 | #if defined (HAVE_SETLOCALE) | |
501 | setlocale (LC_CTYPE, ""); | |
502 | #endif | |
66797541 | 503 | #ifdef ENABLE_NLS |
0fbb3da7 TT |
504 | bindtextdomain (PACKAGE, LOCALEDIR); |
505 | textdomain (PACKAGE); | |
66797541 | 506 | #endif |
0fbb3da7 | 507 | |
614c279d | 508 | notice_open_fds (); |
5484b13a | 509 | |
2669cade | 510 | saved_command_line = (char *) xstrdup (""); |
694ec099 | 511 | |
ffa4ac95 YQ |
512 | #ifdef __MINGW32__ |
513 | /* Ensure stderr is unbuffered. A Cygwin pty or pipe is implemented | |
514 | as a Windows pipe, and Windows buffers on pipes. */ | |
515 | setvbuf (stderr, NULL, _IONBF, BUFSIZ); | |
516 | #endif | |
517 | ||
4d5d1049 TT |
518 | /* Note: `error' cannot be called before this point, because the |
519 | caller will crash when trying to print the exception. */ | |
895b8f30 | 520 | main_ui = new ui (stdin, stdout, stderr); |
98d9f24e | 521 | current_ui = main_ui; |
ffa4ac95 | 522 | |
449092f6 CV |
523 | gdb_stdtargerr = gdb_stderr; /* for moment */ |
524 | gdb_stdtargin = gdb_stdin; /* for moment */ | |
c906108c | 525 | |
4d5d1049 TT |
526 | if (bfd_init () != BFD_INIT_MAGIC) |
527 | error (_("fatal error: libbfd ABI mismatch")); | |
528 | ||
b5981e5a EZ |
529 | #ifdef __MINGW32__ |
530 | /* On Windows, argv[0] is not necessarily set to absolute form when | |
531 | GDB is found along PATH, without which relocation doesn't work. */ | |
532 | gdb_program_name = windows_get_absolute_argv0 (argv[0]); | |
533 | #else | |
16e7150e | 534 | gdb_program_name = xstrdup (argv[0]); |
b5981e5a | 535 | #endif |
16e7150e | 536 | |
075c7033 | 537 | /* Prefix warning messages with the command name. */ |
69bbf465 PA |
538 | gdb::unique_xmalloc_ptr<char> tmp_warn_preprint |
539 | (xstrprintf ("%s: warning: ", gdb_program_name)); | |
540 | warning_pre_print = tmp_warn_preprint.get (); | |
075c7033 | 541 | |
43573013 SDJ |
542 | current_directory = getcwd (NULL, 0); |
543 | if (current_directory == NULL) | |
075c7033 GB |
544 | perror_warning_with_name (_("error finding working directory")); |
545 | ||
030292b7 | 546 | /* Set the sysroot path. */ |
478aac75 DE |
547 | gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT, |
548 | TARGET_SYSTEM_ROOT_RELOCATABLE); | |
030292b7 | 549 | |
fed040c6 GB |
550 | if (gdb_sysroot == NULL || *gdb_sysroot == '\0') |
551 | { | |
552 | xfree (gdb_sysroot); | |
553 | gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX); | |
554 | } | |
555 | ||
478aac75 DE |
556 | debug_file_directory = relocate_gdb_directory (DEBUGDIR, |
557 | DEBUGDIR_RELOCATABLE); | |
030292b7 | 558 | |
478aac75 DE |
559 | gdb_datadir = relocate_gdb_directory (GDB_DATADIR, |
560 | GDB_DATADIR_RELOCATABLE); | |
aa28a74e | 561 | |
0c4a4063 | 562 | #ifdef WITH_PYTHON_PATH |
e6040cbd MS |
563 | { |
564 | /* For later use in helping Python find itself. */ | |
b36cec19 | 565 | char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", (char *) NULL); |
e6040cbd | 566 | |
478aac75 | 567 | python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE); |
e6040cbd MS |
568 | xfree (tmp); |
569 | } | |
0c4a4063 DE |
570 | #endif |
571 | ||
29b0e8a2 JM |
572 | #ifdef RELOC_SRCDIR |
573 | add_substitute_path_rule (RELOC_SRCDIR, | |
b5981e5a | 574 | make_relative_prefix (gdb_program_name, BINDIR, |
29b0e8a2 JM |
575 | RELOC_SRCDIR)); |
576 | #endif | |
577 | ||
4389a95a | 578 | /* There will always be an interpreter. Either the one passed into |
e46e5ccd KS |
579 | this captured main, or one specified by the user at start up, or |
580 | the console. Initialize the interpreter to the one requested by | |
581 | the application. */ | |
11bf1490 | 582 | interpreter_p = xstrdup (context->interpreter_p); |
4389a95a | 583 | |
c906108c SS |
584 | /* Parse arguments and options. */ |
585 | { | |
586 | int c; | |
587 | /* When var field is 0, use flag field to record the equivalent | |
588 | short option (or arbitrary numbers starting at 10 for those | |
589 | with no equivalent). */ | |
49c7e338 AC |
590 | enum { |
591 | OPT_SE = 10, | |
592 | OPT_CD, | |
593 | OPT_ANNOTATE, | |
594 | OPT_STATISTICS, | |
42fa7c0f AC |
595 | OPT_TUI, |
596 | OPT_NOWINDOWS, | |
8320cc4f JK |
597 | OPT_WINDOWS, |
598 | OPT_IX, | |
97cbe998 SDJ |
599 | OPT_IEX, |
600 | OPT_READNOW, | |
601 | OPT_READNEVER | |
49c7e338 | 602 | }; |
c906108c | 603 | static struct option long_options[] = |
c5aa993b | 604 | { |
49c7e338 | 605 | {"tui", no_argument, 0, OPT_TUI}, |
c5aa993b | 606 | {"dbx", no_argument, &dbx_commands, 1}, |
97cbe998 SDJ |
607 | {"readnow", no_argument, NULL, OPT_READNOW}, |
608 | {"readnever", no_argument, NULL, OPT_READNEVER}, | |
609 | {"r", no_argument, NULL, OPT_READNOW}, | |
c5aa993b JM |
610 | {"quiet", no_argument, &quiet, 1}, |
611 | {"q", no_argument, &quiet, 1}, | |
612 | {"silent", no_argument, &quiet, 1}, | |
07540c15 | 613 | {"nh", no_argument, &inhibit_home_gdbinit, 1}, |
c5aa993b JM |
614 | {"nx", no_argument, &inhibit_gdbinit, 1}, |
615 | {"n", no_argument, &inhibit_gdbinit, 1}, | |
1a088d06 | 616 | {"batch-silent", no_argument, 0, 'B'}, |
7c953934 | 617 | {"batch", no_argument, &batch_flag, 1}, |
c5aa993b | 618 | |
371d5dec MS |
619 | /* This is a synonym for "--annotate=1". --annotate is now |
620 | preferred, but keep this here for a long time because people | |
621 | will be running emacses which use --fullname. */ | |
c5aa993b JM |
622 | {"fullname", no_argument, 0, 'f'}, |
623 | {"f", no_argument, 0, 'f'}, | |
624 | ||
49c7e338 | 625 | {"annotate", required_argument, 0, OPT_ANNOTATE}, |
c5aa993b | 626 | {"help", no_argument, &print_help, 1}, |
49c7e338 | 627 | {"se", required_argument, 0, OPT_SE}, |
c5aa993b JM |
628 | {"symbols", required_argument, 0, 's'}, |
629 | {"s", required_argument, 0, 's'}, | |
630 | {"exec", required_argument, 0, 'e'}, | |
631 | {"e", required_argument, 0, 'e'}, | |
632 | {"core", required_argument, 0, 'c'}, | |
633 | {"c", required_argument, 0, 'c'}, | |
00546b04 MS |
634 | {"pid", required_argument, 0, 'p'}, |
635 | {"p", required_argument, 0, 'p'}, | |
c5aa993b | 636 | {"command", required_argument, 0, 'x'}, |
8a5a3c82 | 637 | {"eval-command", required_argument, 0, 'X'}, |
c5aa993b | 638 | {"version", no_argument, &print_version, 1}, |
6eaaf48b | 639 | {"configuration", no_argument, &print_configuration, 1}, |
c5aa993b | 640 | {"x", required_argument, 0, 'x'}, |
8a5a3c82 | 641 | {"ex", required_argument, 0, 'X'}, |
8320cc4f JK |
642 | {"init-command", required_argument, 0, OPT_IX}, |
643 | {"init-eval-command", required_argument, 0, OPT_IEX}, | |
644 | {"ix", required_argument, 0, OPT_IX}, | |
645 | {"iex", required_argument, 0, OPT_IEX}, | |
3fc11d3e JM |
646 | #ifdef GDBTK |
647 | {"tclcommand", required_argument, 0, 'z'}, | |
648 | {"enable-external-editor", no_argument, 0, 'y'}, | |
649 | {"editor-command", required_argument, 0, 'w'}, | |
650 | #endif | |
8b93c638 JM |
651 | {"ui", required_argument, 0, 'i'}, |
652 | {"interpreter", required_argument, 0, 'i'}, | |
653 | {"i", required_argument, 0, 'i'}, | |
c5aa993b | 654 | {"directory", required_argument, 0, 'd'}, |
c4093a6a | 655 | {"d", required_argument, 0, 'd'}, |
aae1c79a | 656 | {"data-directory", required_argument, 0, 'D'}, |
8d551b02 | 657 | {"D", required_argument, 0, 'D'}, |
49c7e338 | 658 | {"cd", required_argument, 0, OPT_CD}, |
c5aa993b JM |
659 | {"tty", required_argument, 0, 't'}, |
660 | {"baud", required_argument, 0, 'b'}, | |
661 | {"b", required_argument, 0, 'b'}, | |
42fa7c0f AC |
662 | {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
663 | {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, | |
664 | {"w", no_argument, NULL, OPT_WINDOWS}, | |
665 | {"windows", no_argument, NULL, OPT_WINDOWS}, | |
49c7e338 | 666 | {"statistics", no_argument, 0, OPT_STATISTICS}, |
c5aa993b | 667 | {"write", no_argument, &write_files, 1}, |
552c04a7 | 668 | {"args", no_argument, &set_args, 1}, |
39c76ca3 | 669 | {"l", required_argument, 0, 'l'}, |
4b0ad762 | 670 | {"return-child-result", no_argument, &return_child_result, 1}, |
c5aa993b JM |
671 | {0, no_argument, 0, 0} |
672 | }; | |
c906108c SS |
673 | |
674 | while (1) | |
675 | { | |
676 | int option_index; | |
677 | ||
678 | c = getopt_long_only (argc, argv, "", | |
679 | long_options, &option_index); | |
552c04a7 | 680 | if (c == EOF || set_args) |
c906108c SS |
681 | break; |
682 | ||
683 | /* Long option that takes an argument. */ | |
684 | if (c == 0 && long_options[option_index].flag == 0) | |
685 | c = long_options[option_index].val; | |
686 | ||
687 | switch (c) | |
688 | { | |
689 | case 0: | |
690 | /* Long option that just sets a flag. */ | |
691 | break; | |
49c7e338 | 692 | case OPT_SE: |
c906108c SS |
693 | symarg = optarg; |
694 | execarg = optarg; | |
695 | break; | |
49c7e338 | 696 | case OPT_CD: |
c906108c SS |
697 | cdarg = optarg; |
698 | break; | |
49c7e338 | 699 | case OPT_ANNOTATE: |
c906108c SS |
700 | /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
701 | annotation_level = atoi (optarg); | |
702 | break; | |
49c7e338 | 703 | case OPT_STATISTICS: |
c906108c | 704 | /* Enable the display of both time and space usage. */ |
bd712aed DE |
705 | set_per_command_time (1); |
706 | set_per_command_space (1); | |
c906108c | 707 | break; |
49c7e338 | 708 | case OPT_TUI: |
021e7609 | 709 | /* --tui is equivalent to -i=tui. */ |
b0da54f1 | 710 | #ifdef TUI |
021e7609 | 711 | xfree (interpreter_p); |
cc4349ed | 712 | interpreter_p = xstrdup (INTERP_TUI); |
b0da54f1 | 713 | #else |
91b35fd0 | 714 | error (_("%s: TUI mode is not supported"), gdb_program_name); |
b0da54f1 | 715 | #endif |
021e7609 | 716 | break; |
42fa7c0f AC |
717 | case OPT_WINDOWS: |
718 | /* FIXME: cagney/2003-03-01: Not sure if this option is | |
719 | actually useful, and if it is, what it should do. */ | |
cc4349ed AS |
720 | #ifdef GDBTK |
721 | /* --windows is equivalent to -i=insight. */ | |
722 | xfree (interpreter_p); | |
723 | interpreter_p = xstrdup (INTERP_INSIGHT); | |
724 | #endif | |
42fa7c0f AC |
725 | break; |
726 | case OPT_NOWINDOWS: | |
727 | /* -nw is equivalent to -i=console. */ | |
728 | xfree (interpreter_p); | |
729 | interpreter_p = xstrdup (INTERP_CONSOLE); | |
42fa7c0f | 730 | break; |
c906108c SS |
731 | case 'f': |
732 | annotation_level = 1; | |
c906108c SS |
733 | break; |
734 | case 's': | |
735 | symarg = optarg; | |
736 | break; | |
737 | case 'e': | |
738 | execarg = optarg; | |
739 | break; | |
740 | case 'c': | |
741 | corearg = optarg; | |
742 | break; | |
00546b04 | 743 | case 'p': |
a4d9b460 | 744 | pidarg = optarg; |
00546b04 | 745 | break; |
c906108c | 746 | case 'x': |
7a63494a | 747 | cmdarg_vec.emplace_back (CMDARG_FILE, optarg); |
8a5a3c82 AS |
748 | break; |
749 | case 'X': | |
7a63494a | 750 | cmdarg_vec.emplace_back (CMDARG_COMMAND, optarg); |
26743505 | 751 | break; |
8320cc4f | 752 | case OPT_IX: |
7a63494a | 753 | cmdarg_vec.emplace_back (CMDARG_INIT_FILE, optarg); |
8320cc4f JK |
754 | break; |
755 | case OPT_IEX: | |
7a63494a | 756 | cmdarg_vec.emplace_back (CMDARG_INIT_COMMAND, optarg); |
c906108c | 757 | break; |
1a088d06 | 758 | case 'B': |
7c953934 | 759 | batch_flag = batch_silent = 1; |
d7e74731 | 760 | gdb_stdout = new null_file (); |
1a088d06 | 761 | break; |
aae1c79a | 762 | case 'D': |
8d551b02 | 763 | if (optarg[0] == '\0') |
91b35fd0 GB |
764 | error (_("%s: empty path for `--data-directory'"), |
765 | gdb_program_name); | |
8d551b02 | 766 | set_gdb_data_directory (optarg); |
e64e0392 | 767 | gdb_datadir_provided = 1; |
aae1c79a | 768 | break; |
3fc11d3e JM |
769 | #ifdef GDBTK |
770 | case 'z': | |
771 | { | |
371d5dec MS |
772 | extern int gdbtk_test (char *); |
773 | ||
3fc11d3e | 774 | if (!gdbtk_test (optarg)) |
91b35fd0 GB |
775 | error (_("%s: unable to load tclcommand file \"%s\""), |
776 | gdb_program_name, optarg); | |
3fc11d3e JM |
777 | break; |
778 | } | |
779 | case 'y': | |
78f49586 TT |
780 | /* Backwards compatibility only. */ |
781 | break; | |
3fc11d3e JM |
782 | case 'w': |
783 | { | |
3a9b40b6 JK |
784 | /* Set the external editor commands when gdb is farming out files |
785 | to be edited by another program. */ | |
786 | extern char *external_editor_command; | |
787 | ||
3fc11d3e JM |
788 | external_editor_command = xstrdup (optarg); |
789 | break; | |
790 | } | |
791 | #endif /* GDBTK */ | |
fb40c209 | 792 | case 'i': |
4389a95a AC |
793 | xfree (interpreter_p); |
794 | interpreter_p = xstrdup (optarg); | |
fb40c209 | 795 | break; |
c906108c | 796 | case 'd': |
f60ee22e | 797 | dirarg.push_back (optarg); |
c906108c SS |
798 | break; |
799 | case 't': | |
800 | ttyarg = optarg; | |
801 | break; | |
802 | case 'q': | |
803 | quiet = 1; | |
804 | break; | |
805 | case 'b': | |
806 | { | |
b926417a | 807 | int rate; |
c906108c SS |
808 | char *p; |
809 | ||
b926417a TT |
810 | rate = strtol (optarg, &p, 0); |
811 | if (rate == 0 && p == optarg) | |
075c7033 GB |
812 | warning (_("could not set baud rate to `%s'."), |
813 | optarg); | |
c906108c | 814 | else |
b926417a | 815 | baud_rate = rate; |
c906108c | 816 | } |
046ca86a | 817 | break; |
c906108c SS |
818 | case 'l': |
819 | { | |
b926417a | 820 | int timeout; |
c906108c SS |
821 | char *p; |
822 | ||
b926417a TT |
823 | timeout = strtol (optarg, &p, 0); |
824 | if (timeout == 0 && p == optarg) | |
075c7033 GB |
825 | warning (_("could not set timeout limit to `%s'."), |
826 | optarg); | |
c906108c | 827 | else |
b926417a | 828 | remote_timeout = timeout; |
c906108c SS |
829 | } |
830 | break; | |
831 | ||
97cbe998 SDJ |
832 | case OPT_READNOW: |
833 | { | |
834 | readnow_symbol_files = 1; | |
835 | validate_readnow_readnever (); | |
836 | } | |
837 | break; | |
838 | ||
839 | case OPT_READNEVER: | |
840 | { | |
841 | readnever_symbol_files = 1; | |
842 | validate_readnow_readnever (); | |
843 | } | |
844 | break; | |
845 | ||
c906108c | 846 | case '?': |
91b35fd0 GB |
847 | error (_("Use `%s --help' for a complete list of options."), |
848 | gdb_program_name); | |
c906108c SS |
849 | } |
850 | } | |
851 | ||
7c953934 | 852 | if (batch_flag) |
c906108c SS |
853 | quiet = 1; |
854 | } | |
855 | ||
e379cee6 PA |
856 | save_original_signals_state (quiet); |
857 | ||
992c7d70 GB |
858 | /* Try to set up an alternate signal stack for SIGSEGV handlers. */ |
859 | setup_alternate_signal_stack (); | |
860 | ||
f218b647 | 861 | /* Initialize all files. */ |
b5981e5a | 862 | gdb_init (gdb_program_name); |
c906108c | 863 | |
371d5dec MS |
864 | /* Now that gdb_init has created the initial inferior, we're in |
865 | position to set args for that inferior. */ | |
3f81c18a VP |
866 | if (set_args) |
867 | { | |
868 | /* The remaining options are the command-line options for the | |
869 | inferior. The first one is the sym/exec file, and the rest | |
870 | are arguments. */ | |
871 | if (optind >= argc) | |
91b35fd0 GB |
872 | error (_("%s: `--args' specified but no program specified"), |
873 | gdb_program_name); | |
874 | ||
3f81c18a VP |
875 | symarg = argv[optind]; |
876 | execarg = argv[optind]; | |
877 | ++optind; | |
878 | set_inferior_args_vector (argc - optind, &argv[optind]); | |
879 | } | |
880 | else | |
881 | { | |
882 | /* OK, that's all the options. */ | |
883 | ||
884 | /* The first argument, if specified, is the name of the | |
885 | executable. */ | |
886 | if (optind < argc) | |
887 | { | |
888 | symarg = argv[optind]; | |
889 | execarg = argv[optind]; | |
890 | optind++; | |
891 | } | |
892 | ||
893 | /* If the user hasn't already specified a PID or the name of a | |
894 | core file, then a second optional argument is allowed. If | |
895 | present, this argument should be interpreted as either a | |
896 | PID or a core file, whichever works. */ | |
897 | if (pidarg == NULL && corearg == NULL && optind < argc) | |
898 | { | |
899 | pid_or_core_arg = argv[optind]; | |
900 | optind++; | |
901 | } | |
902 | ||
903 | /* Any argument left on the command line is unexpected and | |
904 | will be ignored. Inform the user. */ | |
905 | if (optind < argc) | |
3e43a32a MS |
906 | fprintf_unfiltered (gdb_stderr, |
907 | _("Excess command line " | |
908 | "arguments ignored. (%s%s)\n"), | |
3f81c18a VP |
909 | argv[optind], |
910 | (optind == argc - 1) ? "" : " ..."); | |
911 | } | |
912 | ||
025bb325 | 913 | /* Lookup gdbinit files. Note that the gdbinit file name may be |
371d5dec MS |
914 | overriden during file initialization, so get_init_files should be |
915 | called after gdb_init. */ | |
57a46001 JG |
916 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); |
917 | ||
c906108c | 918 | /* Do these (and anything which might call wrap_here or *_filtered) |
4389a95a AC |
919 | after initialize_all_files() but before the interpreter has been |
920 | installed. Otherwize the help/version messages will be eaten by | |
921 | the interpreter's output handler. */ | |
922 | ||
c906108c SS |
923 | if (print_version) |
924 | { | |
c61b06a1 | 925 | print_gdb_version (gdb_stdout, false); |
c906108c SS |
926 | wrap_here (""); |
927 | printf_filtered ("\n"); | |
928 | exit (0); | |
929 | } | |
930 | ||
931 | if (print_help) | |
932 | { | |
933 | print_gdb_help (gdb_stdout); | |
934 | fputs_unfiltered ("\n", gdb_stdout); | |
935 | exit (0); | |
936 | } | |
937 | ||
6eaaf48b EZ |
938 | if (print_configuration) |
939 | { | |
940 | print_gdb_configuration (gdb_stdout); | |
941 | wrap_here (""); | |
942 | printf_filtered ("\n"); | |
943 | exit (0); | |
944 | } | |
945 | ||
4389a95a AC |
946 | /* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets |
947 | GDB retain the old MI1 interpreter startup behavior. Output the | |
948 | copyright message before the interpreter is installed. That way | |
949 | it isn't encapsulated in MI output. */ | |
950 | if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) | |
951 | { | |
371d5dec MS |
952 | /* Print all the junk at the top, with trailing "..." if we are |
953 | about to read a symbol file (possibly slowly). */ | |
c61b06a1 | 954 | print_gdb_version (gdb_stdout, true); |
4389a95a AC |
955 | if (symarg) |
956 | printf_filtered (".."); | |
957 | wrap_here (""); | |
e896d70e | 958 | printf_filtered ("\n"); |
371d5dec MS |
959 | gdb_flush (gdb_stdout); /* Force to screen during slow |
960 | operations. */ | |
4389a95a AC |
961 | } |
962 | ||
4389a95a | 963 | /* Install the default UI. All the interpreters should have had a |
371d5dec | 964 | look at things by now. Initialize the default interpreter. */ |
60eb5395 | 965 | set_top_level_interpreter (interpreter_p); |
4389a95a AC |
966 | |
967 | /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets | |
968 | GDB retain the old MI1 interpreter startup behavior. Output the | |
969 | copyright message after the interpreter is installed when it is | |
970 | any sane interpreter. */ | |
971 | if (!quiet && !current_interp_named_p (INTERP_MI1)) | |
c906108c | 972 | { |
371d5dec MS |
973 | /* Print all the junk at the top, with trailing "..." if we are |
974 | about to read a symbol file (possibly slowly). */ | |
c61b06a1 | 975 | print_gdb_version (gdb_stdout, true); |
c906108c SS |
976 | if (symarg) |
977 | printf_filtered (".."); | |
c5aa993b | 978 | wrap_here (""); |
e896d70e | 979 | printf_filtered ("\n"); |
371d5dec MS |
980 | gdb_flush (gdb_stdout); /* Force to screen during slow |
981 | operations. */ | |
c906108c SS |
982 | } |
983 | ||
e896d70e | 984 | /* Set off error and warning messages with a blank line. */ |
69bbf465 | 985 | tmp_warn_preprint.reset (); |
defc6f8c | 986 | warning_pre_print = _("\nwarning: "); |
c906108c | 987 | |
16e7150e JG |
988 | /* Read and execute the system-wide gdbinit file, if it exists. |
989 | This is done *before* all the command line arguments are | |
990 | processed; it sets global parameters, which are independent of | |
991 | what file you are debugging or what directory you are in. */ | |
992 | if (system_gdbinit && !inhibit_gdbinit) | |
b0f492b9 | 993 | ret = catch_command_errors (source_script, system_gdbinit, 0); |
16e7150e | 994 | |
c906108c SS |
995 | /* Read and execute $HOME/.gdbinit file, if it exists. This is done |
996 | *before* all the command line arguments are processed; it sets | |
997 | global parameters, which are independent of what file you are | |
998 | debugging or what directory you are in. */ | |
c906108c | 999 | |
07540c15 | 1000 | if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit) |
b0f492b9 | 1001 | ret = catch_command_errors (source_script, home_gdbinit, 0); |
c906108c | 1002 | |
2d7b58e8 | 1003 | /* Process '-ix' and '-iex' options early. */ |
f60ee22e | 1004 | for (i = 0; i < cmdarg_vec.size (); i++) |
2d7b58e8 | 1005 | { |
f60ee22e TT |
1006 | const struct cmdarg &cmdarg_p = cmdarg_vec[i]; |
1007 | ||
1008 | switch (cmdarg_p.type) | |
1009 | { | |
1010 | case CMDARG_INIT_FILE: | |
b0f492b9 GB |
1011 | ret = catch_command_errors (source_script, cmdarg_p.string, |
1012 | !batch_flag); | |
f60ee22e TT |
1013 | break; |
1014 | case CMDARG_INIT_COMMAND: | |
b0f492b9 GB |
1015 | ret = catch_command_errors (execute_command, cmdarg_p.string, |
1016 | !batch_flag); | |
f60ee22e TT |
1017 | break; |
1018 | } | |
2d7b58e8 JK |
1019 | } |
1020 | ||
c906108c SS |
1021 | /* Now perform all the actions indicated by the arguments. */ |
1022 | if (cdarg != NULL) | |
1023 | { | |
b0f492b9 | 1024 | ret = catch_command_errors (cd_command, cdarg, 0); |
c906108c | 1025 | } |
c906108c | 1026 | |
f60ee22e | 1027 | for (i = 0; i < dirarg.size (); i++) |
b0f492b9 | 1028 | ret = catch_command_errors (directory_switch, dirarg[i], 0); |
c906108c | 1029 | |
88a1906b | 1030 | /* Skip auto-loading section-specified scripts until we've sourced |
371d5dec MS |
1031 | local_gdbinit (which is often used to augment the source search |
1032 | path). */ | |
bf88dd68 JK |
1033 | save_auto_load = global_auto_load; |
1034 | global_auto_load = 0; | |
88a1906b | 1035 | |
c906108c SS |
1036 | if (execarg != NULL |
1037 | && symarg != NULL | |
5cb316ef | 1038 | && strcmp (execarg, symarg) == 0) |
c906108c | 1039 | { |
11cf8741 JM |
1040 | /* The exec file and the symbol-file are the same. If we can't |
1041 | open it, better only print one error message. | |
371d5dec | 1042 | catch_command_errors returns non-zero on success! */ |
b0f492b9 GB |
1043 | ret = catch_command_errors (exec_file_attach, execarg, |
1044 | !batch_flag); | |
1045 | if (ret != 0) | |
1046 | ret = catch_command_errors (symbol_file_add_main_adapter, | |
1047 | symarg, !batch_flag); | |
c906108c SS |
1048 | } |
1049 | else | |
1050 | { | |
1051 | if (execarg != NULL) | |
b0f492b9 GB |
1052 | ret = catch_command_errors (exec_file_attach, execarg, |
1053 | !batch_flag); | |
c906108c | 1054 | if (symarg != NULL) |
b0f492b9 GB |
1055 | ret = catch_command_errors (symbol_file_add_main_adapter, |
1056 | symarg, !batch_flag); | |
c906108c | 1057 | } |
c906108c | 1058 | |
a4d9b460 | 1059 | if (corearg && pidarg) |
3e43a32a MS |
1060 | error (_("Can't attach to process and specify " |
1061 | "a core file at the same time.")); | |
a4d9b460 | 1062 | |
c906108c | 1063 | if (corearg != NULL) |
b0f492b9 GB |
1064 | { |
1065 | ret = catch_command_errors (core_file_command, corearg, | |
1066 | !batch_flag); | |
1067 | } | |
a4d9b460 | 1068 | else if (pidarg != NULL) |
b0f492b9 GB |
1069 | { |
1070 | ret = catch_command_errors (attach_command, pidarg, !batch_flag); | |
1071 | } | |
a4d9b460 | 1072 | else if (pid_or_core_arg) |
c906108c | 1073 | { |
a4d9b460 PA |
1074 | /* The user specified 'gdb program pid' or gdb program core'. |
1075 | If pid_or_core_arg's first character is a digit, try attach | |
1076 | first and then corefile. Otherwise try just corefile. */ | |
00546b04 | 1077 | |
a4d9b460 | 1078 | if (isdigit (pid_or_core_arg[0])) |
11cf8741 | 1079 | { |
b0f492b9 GB |
1080 | ret = catch_command_errors (attach_command, pid_or_core_arg, |
1081 | !batch_flag); | |
1082 | if (ret == 0) | |
1083 | ret = catch_command_errors (core_file_command, | |
1084 | pid_or_core_arg, | |
1085 | !batch_flag); | |
1086 | } | |
1087 | else | |
1088 | { | |
1089 | /* Can't be a pid, better be a corefile. */ | |
1090 | ret = catch_command_errors (core_file_command, | |
1091 | pid_or_core_arg, | |
1092 | !batch_flag); | |
11cf8741 | 1093 | } |
c906108c | 1094 | } |
c906108c SS |
1095 | |
1096 | if (ttyarg != NULL) | |
3f81c18a | 1097 | set_inferior_io_terminal (ttyarg); |
c906108c | 1098 | |
371d5dec | 1099 | /* Error messages should no longer be distinguished with extra output. */ |
defc6f8c | 1100 | warning_pre_print = _("warning: "); |
c906108c SS |
1101 | |
1102 | /* Read the .gdbinit file in the current directory, *if* it isn't | |
1103 | the same as the $HOME/.gdbinit file (it should exist, also). */ | |
bf88dd68 JK |
1104 | if (local_gdbinit) |
1105 | { | |
14278e1f TT |
1106 | auto_load_local_gdbinit_pathname |
1107 | = gdb_realpath (local_gdbinit).release (); | |
bf88dd68 | 1108 | |
bccbefd2 | 1109 | if (!inhibit_gdbinit && auto_load_local_gdbinit |
4dc84fd1 JK |
1110 | && file_is_auto_load_safe (local_gdbinit, |
1111 | _("auto-load: Loading .gdbinit " | |
1112 | "file \"%s\".\n"), | |
1113 | local_gdbinit)) | |
bf88dd68 JK |
1114 | { |
1115 | auto_load_local_gdbinit_loaded = 1; | |
1116 | ||
b0f492b9 | 1117 | ret = catch_command_errors (source_script, local_gdbinit, 0); |
bf88dd68 JK |
1118 | } |
1119 | } | |
c906108c | 1120 | |
88a1906b DE |
1121 | /* Now that all .gdbinit's have been read and all -d options have been |
1122 | processed, we can read any scripts mentioned in SYMARG. | |
1123 | We wait until now because it is common to add to the source search | |
1124 | path in local_gdbinit. */ | |
bf88dd68 | 1125 | global_auto_load = save_auto_load; |
2030c079 | 1126 | for (objfile *objfile : current_program_space->objfiles ()) |
7f6130ff | 1127 | load_auto_scripts_for_objfile (objfile); |
88a1906b | 1128 | |
8320cc4f | 1129 | /* Process '-x' and '-ex' options. */ |
f60ee22e | 1130 | for (i = 0; i < cmdarg_vec.size (); i++) |
c906108c | 1131 | { |
f60ee22e TT |
1132 | const struct cmdarg &cmdarg_p = cmdarg_vec[i]; |
1133 | ||
1134 | switch (cmdarg_p.type) | |
1135 | { | |
1136 | case CMDARG_FILE: | |
b0f492b9 GB |
1137 | ret = catch_command_errors (source_script, cmdarg_p.string, |
1138 | !batch_flag); | |
f60ee22e TT |
1139 | break; |
1140 | case CMDARG_COMMAND: | |
b0f492b9 GB |
1141 | ret = catch_command_errors (execute_command, cmdarg_p.string, |
1142 | !batch_flag); | |
f60ee22e TT |
1143 | break; |
1144 | } | |
c906108c | 1145 | } |
c906108c | 1146 | |
371d5dec MS |
1147 | /* Read in the old history after all the command files have been |
1148 | read. */ | |
c5aa993b | 1149 | init_history (); |
c906108c | 1150 | |
7c953934 | 1151 | if (batch_flag) |
c906108c | 1152 | { |
b0f492b9 GB |
1153 | int error_status = EXIT_FAILURE; |
1154 | int *exit_arg = ret == 0 ? &error_status : NULL; | |
1155 | ||
c906108c | 1156 | /* We have hit the end of the batch file. */ |
b0f492b9 | 1157 | quit_force (exit_arg, 0); |
c906108c | 1158 | } |
1e3b796d TT |
1159 | } |
1160 | ||
1161 | static void | |
1162 | captured_main (void *data) | |
1163 | { | |
1164 | struct captured_main_args *context = (struct captured_main_args *) data; | |
1165 | ||
1166 | captured_main_1 (context); | |
c906108c | 1167 | |
11cf8741 JM |
1168 | /* NOTE: cagney/1999-11-07: There is probably no reason for not |
1169 | moving this loop and the code found in captured_command_loop() | |
1170 | into the command_loop() proper. The main thing holding back that | |
371d5dec | 1171 | change - SET_TOP_LEVEL() - has been eliminated. */ |
11cf8741 JM |
1172 | while (1) |
1173 | { | |
bf469271 PA |
1174 | TRY |
1175 | { | |
1176 | captured_command_loop (); | |
1177 | } | |
1178 | CATCH (ex, RETURN_MASK_ALL) | |
1179 | { | |
1180 | exception_print (gdb_stderr, ex); | |
1181 | } | |
1182 | END_CATCH | |
11cf8741 | 1183 | } |
11cf8741 JM |
1184 | /* No exit -- exit is through quit_command. */ |
1185 | } | |
c906108c | 1186 | |
11cf8741 | 1187 | int |
f15ab4a7 | 1188 | gdb_main (struct captured_main_args *args) |
11cf8741 | 1189 | { |
98d9f24e PA |
1190 | TRY |
1191 | { | |
1192 | captured_main (args); | |
1193 | } | |
1194 | CATCH (ex, RETURN_MASK_ALL) | |
1195 | { | |
1196 | exception_print (gdb_stderr, ex); | |
1197 | } | |
1198 | END_CATCH | |
1199 | ||
864dbc90 AC |
1200 | /* The only way to end up here is by an error (normal exit is |
1201 | handled by quit_force()), hence always return an error status. */ | |
1202 | return 1; | |
c906108c SS |
1203 | } |
1204 | ||
11cf8741 | 1205 | |
c906108c SS |
1206 | /* Don't use *_filtered for printing help. We don't want to prompt |
1207 | for continue no matter how small the screen or how much we're going | |
1208 | to print. */ | |
1209 | ||
1210 | static void | |
d9fcf2fb | 1211 | print_gdb_help (struct ui_file *stream) |
c906108c | 1212 | { |
50dd9793 PA |
1213 | const char *system_gdbinit; |
1214 | const char *home_gdbinit; | |
1215 | const char *local_gdbinit; | |
16e7150e JG |
1216 | |
1217 | get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); | |
1218 | ||
b187bec1 EZ |
1219 | /* Note: The options in the list below are only approximately sorted |
1220 | in the alphabetical order, so as to group closely related options | |
1221 | together. */ | |
defc6f8c | 1222 | fputs_unfiltered (_("\ |
c906108c | 1223 | This is the GNU debugger. Usage:\n\n\ |
552c04a7 TT |
1224 | gdb [options] [executable-file [core-file or process-id]]\n\ |
1225 | gdb [options] --args executable-file [inferior-arguments ...]\n\n\ | |
defc6f8c TT |
1226 | "), stream); |
1227 | fputs_unfiltered (_("\ | |
b187bec1 | 1228 | Selection of debuggee and its files:\n\n\ |
552c04a7 | 1229 | --args Arguments after executable-file are passed to inferior\n\ |
b187bec1 EZ |
1230 | --core=COREFILE Analyze the core dump COREFILE.\n\ |
1231 | --exec=EXECFILE Use EXECFILE as the executable.\n\ | |
1232 | --pid=PID Attach to running process PID.\n\ | |
1233 | --directory=DIR Search for source files in DIR.\n\ | |
1234 | --se=FILE Use FILE as symbol file and executable file.\n\ | |
1235 | --symbols=SYMFILE Read symbols from SYMFILE.\n\ | |
1236 | --readnow Fully read symbol files on first access.\n\ | |
97cbe998 | 1237 | --readnever Do not read symbol files.\n\ |
b187bec1 | 1238 | --write Set writing into executable and core files.\n\n\ |
defc6f8c TT |
1239 | "), stream); |
1240 | fputs_unfiltered (_("\ | |
b187bec1 | 1241 | Initial commands and command files:\n\n\ |
8a5a3c82 | 1242 | --command=FILE, -x Execute GDB commands from FILE.\n\ |
b187bec1 EZ |
1243 | --init-command=FILE, -ix\n\ |
1244 | Like -x but execute commands before loading inferior.\n\ | |
8a5a3c82 AS |
1245 | --eval-command=COMMAND, -ex\n\ |
1246 | Execute a single GDB command.\n\ | |
1247 | May be used multiple times and in conjunction\n\ | |
1248 | with --command.\n\ | |
b187bec1 EZ |
1249 | --init-eval-command=COMMAND, -iex\n\ |
1250 | Like -ex but before loading inferior.\n\ | |
1251 | --nh Do not read ~/.gdbinit.\n\ | |
1252 | --nx Do not read any .gdbinit files in any directory.\n\n\ | |
defc6f8c TT |
1253 | "), stream); |
1254 | fputs_unfiltered (_("\ | |
b187bec1 | 1255 | Output and user interface control:\n\n\ |
c906108c | 1256 | --fullname Output information used by emacs-GDB interface.\n\ |
8b93c638 JM |
1257 | --interpreter=INTERP\n\ |
1258 | Select a specific interpreter / user interface\n\ | |
c906108c | 1259 | --tty=TTY Use TTY for input/output by the program being debugged.\n\ |
b187bec1 EZ |
1260 | -w Use the GUI interface.\n\ |
1261 | --nw Do not use the GUI interface.\n\ | |
defc6f8c | 1262 | "), stream); |
c906108c | 1263 | #if defined(TUI) |
defc6f8c | 1264 | fputs_unfiltered (_("\ |
c906108c | 1265 | --tui Use a terminal user interface.\n\ |
defc6f8c | 1266 | "), stream); |
c906108c | 1267 | #endif |
481860b3 | 1268 | fputs_unfiltered (_("\ |
b187bec1 | 1269 | --dbx DBX compatibility mode.\n\ |
adcc0a31 | 1270 | -q, --quiet, --silent\n\ |
1271 | Do not print version number on startup.\n\n\ | |
b187bec1 EZ |
1272 | "), stream); |
1273 | fputs_unfiltered (_("\ | |
1274 | Operating modes:\n\n\ | |
1275 | --batch Exit after processing options.\n\ | |
1276 | --batch-silent Like --batch, but suppress all gdb stdout output.\n\ | |
1277 | --return-child-result\n\ | |
1278 | GDB exit code will be the child's exit code.\n\ | |
1279 | --configuration Print details about GDB configuration and then exit.\n\ | |
1280 | --help Print this message and then exit.\n\ | |
1281 | --version Print version information and then exit.\n\n\ | |
1282 | Remote debugging options:\n\n\ | |
1283 | -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ | |
1284 | -l TIMEOUT Set timeout in seconds for remote debugging.\n\n\ | |
1285 | Other options:\n\n\ | |
1286 | --cd=DIR Change current directory to DIR.\n\ | |
8d551b02 DE |
1287 | --data-directory=DIR, -D\n\ |
1288 | Set GDB's data-directory to DIR.\n\ | |
defc6f8c | 1289 | "), stream); |
defc6f8c | 1290 | fputs_unfiltered (_("\n\ |
16e7150e JG |
1291 | At startup, GDB reads the following init files and executes their commands:\n\ |
1292 | "), stream); | |
1293 | if (system_gdbinit) | |
1294 | fprintf_unfiltered (stream, _("\ | |
1295 | * system-wide init file: %s\n\ | |
1296 | "), system_gdbinit); | |
1297 | if (home_gdbinit) | |
1298 | fprintf_unfiltered (stream, _("\ | |
1299 | * user-specific init file: %s\n\ | |
1300 | "), home_gdbinit); | |
1301 | if (local_gdbinit) | |
1302 | fprintf_unfiltered (stream, _("\ | |
bf88dd68 | 1303 | * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\ |
16e7150e JG |
1304 | "), local_gdbinit); |
1305 | fputs_unfiltered (_("\n\ | |
c906108c SS |
1306 | For more information, type \"help\" from within GDB, or consult the\n\ |
1307 | GDB manual (available as on-line info or a printed manual).\n\ | |
defc6f8c | 1308 | "), stream); |
c16158bc JM |
1309 | if (REPORT_BUGS_TO[0] && stream == gdb_stdout) |
1310 | fprintf_unfiltered (stream, _("\ | |
1311 | Report bugs to \"%s\".\n\ | |
1312 | "), REPORT_BUGS_TO); | |
c906108c | 1313 | } |